Maybe Zack Greinke isn’t the one having trouble making up his mind. Maybe those teams that seem intent on making him the highest-paid pitcher in history are having doubts.

If they’re not, they should be.

Even by the silly standards of free-agent spending, the notion of giving Greinke $25 million a year is difficult to grasp.

Check his ERA rankings for the past three seasons. Greinke ranked 27th last season. In 2011, he tied for 58th. In 2010, 63rd. Combined over those three seasons, he’s 50th (3.83).

He doesn’t rank much better in some of the other so-called standard stats, either. Since 2010, he’s 51st in opponents’ batting average (.252), 32nd in WHIP, 29th in walks and 26th in innings.

I don’t see how any of those numbers make him worthy of being No. 1 in contracts. And I’m not alone.

“I’m glad we’re not the ones looking at giving him that kind of contract,” says an executive for a mid-market team.

“I would not classify him as a No. 1 starter,” says a long-time scout.

Almost as perplexing are the teams reported to be leading the Greinke sweepstakes. OK, I can get the Dodgers. With an industry-changing TV deal on the horizon, they really are operating in La La land.

But the Rangers? Nolan Ryan is the most solid, sensible man in the game. No team is run better than his. The Rangers have a shrewd front office that balances old-school scouting and new-wave analytics. They’ve won two of the past three American League pennants and have built the game’s strongest farm system. They have a monster TV deal of their own coming in 2014 but also plenty of experience operating with mid-market resources.

The Rangers know pitching, too. Their pitching coach, Mike Maddux, is regarded as one of the best in the business and his brother, Greg, also is on the payroll. Put those two with Ryan and the Rangers wouldn’t figure to miss on many pitching evaluations.

They must covet plenty about Greinke if they’re willing to pay him more than $150 million when, for the same kind of commitment, they probably could keep Josh Hamilton and trade for a front-line starter such as James Shields or R.A. Dickey.

Certainly, there’s plenty to like about Greinke. Even the scout who doesn’t view him as a top-of-the-rotation guy says he has great stuff. “He’s just not consistent,” he adds, citing a minor glitch in his windup for a possible reason (“He’s short in the back.”)

Perhaps the Rangers consider Greinke the rare free agent who will be paid for what he will do rather than what he’s already done. Besides his Cy Young season in 2009, Greinke hasn’t done all that much.

But he is a great athlete with a body type that scout say will age well. He works with a smooth, clean delivery and has a right arm that has remained remarkably durable. Greinke’s only two trips to the disabled list were due to anxiety issues in 2006 and broken ribs suffered in a pickup basketball game in 2011. Age also is on his side as he doesn’t turn 30 til next October.

Perhaps the Rangers value new-wave stats more than the ones on the back of baseball cards. Greinke’s numbers in the world of analytics look stronger than his standard stats. Since 2010, for example, he ranks seventh in pitcher’s WAR and eighth in FIP (Fielding Independent Pitching).

The Rangers certainly would make a comfortable landing spot for Greinke. The Metroplex ranks as the country’s seventh-largest media market but Rangers Ballpark resides in the bedroom community of Arlington, a good fit for Greinke’s low-key personality. Plus, his wife already knows the area from her days as a Cowboys cheerleader.

Based on reports, Greinke is taking a more active role in the negotiating process than most free agents. He has been known for his studiousness with regards to baseball since former teammate Brian Bannister turned him on to sabermetrics years ago.

Greinke’s interest extends further than his own game, too. His general manager in Milwaukee, Doug Melvin, told Sport Illustrated’s Tom Verducci that Greinke had such a deep knowledge of draft prospects that Melvin wondered if the pitcher knew more than the GM.

Given his curiosity in the conference-room side of the game, I wonder what Greinke as GM would offer Greinke the pitcher. Based on what other, more accomplished starters have landed, somewhere around $100 million over five years would be about right, if not a bit generous.

Of course, Greinke doesn’t have to worry about overpaying. He’s the one who soon will be overpaid.